Microgeneration Certification Scheme: MCS 007

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Microgeneration Certification Scheme: MCS 007Product Certification Scheme Requirements:Heat PumpsIssue 6.0This Microgeneration Guidance Document is the property of Department for Business, Energy andIndustrial Strategy (BEIS), 1 Victoria Street, London, SW1H 0ET. BEIS 2018

This Standard has been approved by the Standards Management Groupof the Microgeneration Certification Scheme.This document has been prepared by the MCS Working Group 6 ‘HeatPumps’.REVISION OF MICROGENERATION PRODUCT CERTIFICATIONSTANDARDSMicrogeneration Product Certification Standards will be revised by issueof revised editions or amendments. Details will be posted on the websiteat www.microgenerationcertification.orgTechnical or other changes which affect the requirements for theapproval or certification of the product or service will result in a new issue.Minor or administrative changes (e.g. corrections of spelling andtypographical errors, changes to address and copyright details, theaddition of notes for clarification etc.) may be made as amendments.The issue number will be given in decimal format with the integer partgiving the issue number and the fractional part giving the number ofamendments (e.g. Issue 3.2 indicates that the document is at Issue 3 with2 amendments).Users of this Standard should ensure that they possess the latest issueand all amendments.Issue: 6.0Date: 26/11/2018PRODUCT CERTIFICATION SCHEMEREQUIREMENTS: HEAT PUMPSMCS: 007Page 2 of 37

TABLE OF CONTENTSFOREWORD . 41.INTRODUCTION . 52.DEFINITIONS . 53.SCOPE . 74.APPLICATIONS TO JOIN THE SCHEME . 95.MANAGEMENT SYSTEMS CERTIFICATION . 96.CERTIFICATION AND APPROVAL. 97.TECHNICAL DOCUMENTATION . 108.PERFORMANCE AND TESTING CRITERIA . 118.1Product testing and performance criteria for electrically driven air, exhaustair, ground and water source heat pumps for space heating . 118.2Product testing and performance criteria for electrically driven air/waterheat pumps designed for use with outdoor swimming pools. . 148.3Product testing and performance criteria for gas absorption and adsorptionheat pumps. 158.4Product testing and performance criteria for electrically driven heat pumpsdesigned for domestic hot water production only . 178.5Product testing and performance criteria for electrically driven solarassisted heat pumps designed for domestic hot water production . 189.10.MAINTENANCE OF CERTIFICATION AND LISTING . 199.1Factory Audits . 199.2Product Audits . 19CERTIFICATION MARK AND LABELLING . )REQUIREMENTS . 21Annex A - Acoustic testing for electrically driven heat pumps designed for domestic hotwater production only . 22Annex B - Product testing and performance criteria for external absorbers incorporated insolar assisted heat pumps designed for domestic hot water production . 24Issue: 6.0Date: 26/11/2018PRODUCT CERTIFICATION SCHEMEREQUIREMENTS: HEAT PUMPSMCS: 007Page 3 of 37

FOREWORDThe following document contains provisions which, through reference in this text,constitute normative or informative provisions of this document MCS 007. At the time ofpublication, the editions indicated were valid. All documents are subject to revision, andparties applying this document MCS 007 are encouraged to investigate the possibility ofapplying the most recent editions of the documents referenced.The following document (MCS 007 Issue 6.0) is a major update to MCS 007 Issue 5.0. Itis available for reference from the date of publication (26/11/2018). Manufacturers orimporters of microgeneration systems who have certificated a microgeneration productin accordance with MCS 007 may commence working in accordance with this updatefrom 26/05/2019.Issue: 6.0Date: 26/11/2018PRODUCT CERTIFICATION SCHEMEREQUIREMENTS: HEAT PUMPSMCS: 007Page 4 of 37

1. INTRODUCTION1.1 This Scheme document identifies the evaluation and assessment requirements andpractices for the purposes of certification and listing of heat pumps. These requirementsare consistent with the requirements for heat pumps in the relevant CommissionRegulations, either, supplementing Directive 2010/30/EU of the European Parliament andof the Council, or, implementing Directive 2009/125/EC of the European Parliament andof the Council. Hereinafter the term ‘ErP’ is generally used in relation to these directivesand regulations.1.2 Certification and listing of products is based on evidence acceptable to the CertificationBody: that the product meets the MCS Requirements for heat pumps that the manufacturer has staff, processes and systems in place to ensure that theproduct delivered meets the MCS Requirements for heat pumpsAnd on: periodic audits of the manufacturer including testing as appropriate; and, compliance with the contract with the Certification Body for listing and approvalincluding agreement to rectify faults as appropriate.2. DEFINITIONSFor the purposes of these MCS Requirements for heat pumps and for the MCS Schemethe following definitions are used and are taken from the ErP Directive and EN14825:2016. This includes definitions for both applications and heat pump types. Unlessotherwise stated, the term ‘heat pump’ used throughout this standard includes low andvery high temperature heat pumps.Issue: 6.0Date: 26/11/2018PRODUCT CERTIFICATION SCHEMEREQUIREMENTS: HEAT PUMPSMCS: 007Page 5 of 37

TermDefinitionLowtemperatureapplicationAn application where the heat pump space heater delivers itsdeclared capacity for heating at an indoor heat exchanger outlettemperature of 35 C.IntermediatetemperatureapplicationAn application where the heat pump space heater delivers itsdeclared capacity for heating at an indoor heat exchanger outlettemperature of 45 C.MediumtemperatureapplicationAn application where the heat pump space heater or heat pumpcombination heater delivers its declared capacity for heating at anindoor heat exchanger outlet temperature of 55 C.HightemperatureapplicationAn application where the heat pump space heater or heat pumpcombination heater delivers its declared capacity for heating at anindoor heat exchanger outlet temperature of 65 C.Lowtemperatureheat pumpsA heat pump space heater that is specifically designed for lowtemperature application, and that cannot deliver heating water withan outlet temperature of 52 C at an inlet dry (wet) bulb temperatureof – 7 C (– 8 C) in the reference design conditions for averageclimate (88% part load condition for water/brine-to-water units).Heat pump(excluding lowtemperatureheat pumps)A “heat pump”, as defined by the Commission Regulation, is one thathas been demonstrated to be able to deliver heating water with anoutlet temperature of 52 C at an inlet dry (wet) bulb temperature of– 7 C (– 8 C) in the reference design conditions for average climate(88% part load condition for water/brine-to-water units).Very hightemperatureheat pumpA heat pump that has been demonstrated to be able to operate at the‘high temperature application’ condition, defined above, whilstmeeting the requirements of the relevant Commission Regulation.Heat PumpSpace heaterA space heater using ambient heat from an air source, water sourceor ground source, and/or waste heat for heat generation; a heat pumpspace heater may be equipped with one or more supplementaryheaters using the Joule effect in electric resistance heating elementsor the combustion of fossil and/or biomass fuels.Issue: 6.0Date: 26/11/2018PRODUCT CERTIFICATION SCHEMEREQUIREMENTS: HEAT PUMPSMCS: 007Page 6 of 37

Domestic hotwater heatpumpDomestic hot water heat pump means a heat pump using ambientheat from an air source, water source or ground source, and/or wasteheat for heat generation that is solely designed to provide heat todeliver hot drinking or sanitary water at given temperature levels,quantities and flow rates during given intervals, and is connected toan external supply of drinking or sanitary water.Heat PumpCombinationheaterA heat pump space heater that is designed to also provide heat todeliver hot drinking or sanitary water at given temperature levels,quantities and flow rates during given intervals, and is connected toan external supply of drinking or sanitary water.Gas absorption/adsorption heatpumpA heat pump that uses direct heat energy from the combustion of gas(natural or LPG) to affect the absorption or adsorption of a mediuminto another which creates a low temperature low pressure side anda high pressure high temperature side. The process may be toreversibly change the chemical composition (Absorption) or merelymechanically combine two chemicals temporarily together(Adsorption).Solar assistedheat pumpA type of air source heat pump that uses a vapour compression cycleto generate heat from a non-aspirated evaporator which should belocated externally in the ambient air and is able to benefit fromadditional heat from direct solar radiation. These are sometimesreferred to as “thermodynamic” panels.3. SCOPEThe scope of this MCS Product Certification Scheme document is limited to single heatpumps up to 45 kWth output, at 100% load at the low temperature standard ratingcondition specified in EN14511-2.Products designed for the extraction of heat from loft spaces are excluded from the scopeof this MCS Product Certification Scheme document.This MCS Product Certification Scheme document for heat pumps provides ongoingindependent, third party certification of heat pumps for companies who wish todemonstrate that heat pumps, of the types below, meet and continue to meet:Issue: 6.0Date: 26/11/2018PRODUCT CERTIFICATION SCHEMEREQUIREMENTS: HEAT PUMPSMCS: 007Page 7 of 37

3.1Relevant requirementsThe relevant requirements are identified below:Heat Pump Type and applicationType of requirementHeat pumps, including combination heat pumps, with Thermal performanceelectrically driven compressors for space heating: Air source Exhaust air source Ground source Water sourceSound characteristicsSafetyHeat pumps with electrically driven compressors, Thermal performanceair/water designed for use with outdoor swimming Sound characteristicspoolsSafetyHeat pump with electrically driven compressors used Thermal performancefor domestic hot water onlySound characteristicsSafetySolar assisted heat pump with electrically drivenThermal performancecompressors used for domestic hot water onlySound characteristicsSafetyGas-fired absorption and adsorption heat pumpsThermal performanceSound characteristicsSafety*Table 1- Heat Pump Type and application and type of requirementNote: * In addition to the requirements of MCS 007, ALL gas fired appliances sold in the UK mustcomply with the requirements of REGULATION (EU) 2016/426 OF THE EUROPEANPARLIAMENT AND OF THE COUNCIL of 9 March 2016 on appliances burning gaseous fuels3.2The management systems requirements detailed in Clause 5.3.3The technical documentation requirements detailed in Clause 7.3.4The performance and testing requirements detailed in Clause 8.Issue: 6.0Date: 26/11/2018PRODUCT CERTIFICATION SCHEMEREQUIREMENTS: HEAT PUMPSMCS: 007Page 8 of 37

4. APPLICATIONS TO JOIN THE SCHEME4.1 Applications should be made to an accredited Certification Body operating thisScheme, who will provide the appropriate application form and details of the applicablefees.5. MANAGEMENT SYSTEMS CERTIFICATION5.1 Manufacturers shall operate a documented manufacturing quality control system,certified in accordance with the requirements of MCS 010 - Factory Production ControlRequirements.6. CERTIFICATION AND APPROVAL6.1 Certification and approval is based on the following:a) Evidence of meeting the detailed testing requirements for the relevant product typeas set out in Clause 8 and in accordance with the requirements of MCS 011 Acceptance Criteria for Testing Required for Product Certification;b) Verification of the establishment and maintenance of the manufacturing company’squality management system in accordance with the Factory Production Control(FPC) requirements set out in MCS 010; andc) Review of the technical documentation relating to the material or product,confirming that it is generally complete and correct and that it fulfils any specificrequirements defined in this standard or in the relevant standards with whichcompliance is claimed, including any requirements for inclusion of information ininstruction documents for the product.6.2 Product family assessment is accepted in this MCS Product Certification Schemedocument. Acceptance is based only on the definitions and testing regimes as set out byeither the CEN Heat Pump Keymark Scheme or the Eurovent Certita Scheme, current atthe time of assessment. Certification Bodies shall satisfy themselves that the productmanufacturer has adequately demonstrated and validated the ‘Product family’ approach,supplying where required, adequate information on predicted data and subsequent testresults.Issue: 6.0Date: 26/11/2018PRODUCT CERTIFICATION SCHEMEREQUIREMENTS: HEAT PUMPSMCS: 007Page 9 of 37

6.3 A certificate may be awarded following demonstration of satisfactory compliance withthe appropriate requirements of the Scheme and this Scheme document, taking intoaccount any limitations imposed by relevant standards and other appropriate guidelines,and satisfactory verification/assessment of the manufacturer’s FPC systems and technicaldocumentation.6.4 Certificates contain the name and address of the manufacturer, model and referencenumber of the heat pump, a unique certificate reference number, the issue number, anddate. In addition, limitations on certification shall also be stated. For example, if a solarassisted heat pump product is tested with a 200 litre tank to qualify under MCS then thecertificate shall indicate that it shall only be installed with, or retrofitted to tanks of 200 litresor below.6.5 Certificates are valid from the date of issue, and are maintained and held in forcesubject to satisfactory completion of the requirements for maintenance of certification (seeitem 8), but remain the property of the issuing Certification Body.6.6 Details of the manufacturer and the certificated product(s) are listed atwww.microgenerationcertification.org.7. TECHNICAL DOCUMENTATION7.1 Technical documentation for the product must be submitted for review. Thisdocumentation shall be presented in English and shall be such that it can be assured thatthe products submitted for test are equivalent to those that are to be manufactured fornormal production.7.2 The documentation must consist of the following as a minimum:a) Details of intended use, application and classifications (if any) required;b) Manufacturing drawings and/or specifications including tolerances, issue andrevision numbers;c) The revision number of the product;d) Raw material and components specifications;Issue: 6.0Date: 26/11/2018PRODUCT CERTIFICATION SCHEMEREQUIREMENTS: HEAT PUMPSMCS: 007Page 10 of 37

e) Details of the quality plan applied during manufacture to ensure ongoingcompliance;f)Test / Examination reports in accordance with the relevant standards definedabove. Where historical test data, carried out in accordance with this standard, isrequested to be considered for the application, full test report and details of anyexisting approvalsNote: Each application will be dealt with on a case by case basis and furtherinformation about the acceptance of previous testing is available on request.g) Evidence of weather compensation capability;h) Installation, use and maintenance instructions; andi)The documentation set out in the pertinent regulation (Commission Regulation(EU) No. 813/2014. Annex II, Section 5; Commission Regulation (EU) No.814/2014. Annex II, Section 1.6; Commission Regulation (EU) No. 206/2012.Annex I, Section 3).8. PERFORMANCE AND TESTING CRITERIAThis section sets out the performance requirements, testing methods and other specificrequirements for each type of heat pump product recognised by the Scheme.For all product types, physical testing is required at the conditions indicated either in thisdocument or as defined in the relevant standards identified. Testing of products must bein accordance with the requirements of MCS 011.Note: Where test conditions are taken from EN 14825:2016 the standard requires theproduct also to be tested at the relevant full load standard rating condition. This isnecessary to determine the value of the fluid flow rate(s) to be used during the part loadcondition tests.8.1Product testing and performance criteria for electrically driven air, exhaust air,ground and water source heat pumps for space heating8.1.1 For compliance with this Scheme, electrically driven heat pumps for space heatingmust be optimised for heating.Issue: 6.0Date: 26/11/2018PRODUCT CERTIFICATION SCHEMEREQUIREMENTS: HEAT PUMPSMCS: 007Page 11 of 37

8.1.2 Space heaters shall meet the requirements of the following: Table 2 of MCS 007 for Seasonal Space Heating Energy Efficiency; and COMMISSION REGULATION (EU) No 813/2013, Annex II, Section 3,“Requirements for sound power level”.8.1.3 Combination heaters shall meet the requirements of the following: Table 2 of MCS 007 - Seasonal Space Heating Energy Efficiency; COMMISSION REGULATION (EU) No 813/2013, Annex II, Clause 2,“Requirements for water heating energy efficiency”; and COMMISSION REGULATION (EU) No 813/2013, Annex II, Clause 3,“Requirements for sound power level”.The Seasonal Space Heating Energy Efficiency (SSHEE) as calculated by MCS SCOPCalculator for Air to Water and Ground / Brine to Water heat pumps (or MCS 026) shallnot fall below the values in Table 2 below, for heat pump types defined in Clause 2.Product CategorySSHEE from 26th September 2017Heat pump space heaters and heat pump110%combination heaters, with the exception of lowtemperature heat pumpsLow temperature Heat Pumps125%Table 2- Requirements for Seasonal Space Heating Energy Efficiency8.1.4 Evidence in accordance with MCS 011 shall be provided of actual testing of productsat the relevant test point selected from those defined in Table 3.Issue: 6.0Date: 26/11/2018PRODUCT CERTIFICATION SCHEMEREQUIREMENTS: HEAT PUMPSMCS: 007Page 12 of 37

Heat Pump TypeType of testTest conditionsAir to waterThermal performance:EN 14825:2016 Table 8 - Condition A orB for Low temperature heat pumpsEN 14825:2016 Table 10 - Condition Aor B heat pumpsEN 14825:2016 Table 11 - Condition Aor B for Very High Temperature HeatPumpsSound characteristic:EN 14511-1:2018EN 12102-1:2017Water/brine to waterSafety:EN 14511-4:2018Thermal performance:EN 14825:2016 Table 12 - Condition Aor B for Low temperature heat pumpsEN 14825:2016 Table 14 - Condition Aor B heat p

The following document (MCS 007 Issue 6.0) is a major update to MCS 007 Issue 5.0. It is available for reference from the date of publication (26/11/2018). Manufacturers or importers of microgeneration systems who have certificated a microgeneration product in accordance with MCS 007 may commence working in accordance with this update

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